[kvm:queue 13/111] drivers/crypto/ccp/psp-dev.c:214:53: sparse: Using plain integer as NULL pointer

[kbuild test robot <fengguang.wu@xxxxxxxxx>]

tree:   https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue
head:   da0fb9f3d73e7ab266d72a9b216ce0f3833c1e83
commit: 200664d5237f3f8cd2a2f9f5c5dea08502336bd1 [13/111] crypto: ccp: Add Secure Encrypted Virtualization (SEV) command support
reproduce:
        # apt-get install sparse
        git checkout 200664d5237f3f8cd2a2f9f5c5dea08502336bd1
        make ARCH=x86_64 allmodconfig
        make C=1 CF=-D__CHECK_ENDIAN__


sparse warnings: (new ones prefixed by >>)

>> drivers/crypto/ccp/psp-dev.c:214:53: sparse: Using plain integer as NULL pointer
   drivers/crypto/ccp/psp-dev.c:271:45: sparse: Using plain integer as NULL pointer

vim +214 drivers/crypto/ccp/psp-dev.c

   209	
   210	static int __sev_platform_shutdown_locked(int *error)
   211	{
   212		int ret;
   213	
 > 214		ret = __sev_do_cmd_locked(SEV_CMD_SHUTDOWN, 0, error);
   215		if (ret)
   216			return ret;
   217	
   218		psp_master->sev_state = SEV_STATE_UNINIT;
   219		dev_dbg(psp_master->dev, "SEV firmware shutdown\n");
   220	
   221		return ret;
   222	}
   223	

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